Problems with openFd and -threaded

Bryan O'Sullivan bos at
Mon Nov 29 18:36:43 EST 2010

On Sat, Nov 27, 2010 at 9:05 PM, wren ng thornton <wren at> wrote:

> So I've just started playing around with STM and -threaded programs and
> I've run into a bug. The bug is similar to [1] except that the file in
> question is a Posix FIFO instead of a Bluetooth device. Same behavior:
> always errors with -threaded, but expected behavior when not -threaded
> (i.e., blocks until another process opens the other end of the FIFO). GHC
> version is 6.12.1.

Isn't that pretty normal? Just retry if you get EINTR, that's what
throwErrnoIfMinus1 and friends are for:
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